<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<div>
    <div>
        <ul>
            <li id="l1">张三</li>
            <li id="l2">李四</li>
            <li>王五</li>

            <a href="http://" class="c1">尚硅谷</a>
        </ul>
    </div>
    <span>结束</span>
    <a href="" id="a2" title="a2" class="c2">黑马</a>

    <div id="d2">
        <span>
            哈哈哈
        </span>
    </div>
    <p id="p1" class="p1">呵呵呵</p>
</div>
</body>
</html>